각종 용매계에서 Poly(Acrylic Acid)와 Poly(Ethylene Oxide)의 착체형성에 관한 점성 연구

허득범; 강성원; 장춘학; 송기원; 이장우

Journal of the Korean Industrial and Engineering Chemistry, Vol.6, No.4, 643-649, August, 1995

Viscometric Study on Polymer Complexation between Poly (Acrylic Acid) and Poly (Ethylene Oxide) in Various Solvent Systems

허득범, 강성원, 장춘학, 송기원, 이장우

초록

수용액 중에서 poly (acrylic acid)(PAA)와 poly (ethylene oxide)(PEO)간의 수소결합을 통한 고분자 착체 형성에 있어서 용매 및 외부조건의 변화가 미치는 영향을 모세관점도계 및 전위차계를 사용하여 조사하였다. 수용액의 pH가 낮을수록 PAA의 해리도의 감소로 인하여 착체형성이 더욱 유리하였으며, 물-알코을 혼합용매계에서는 알코올의 영향으로 착체형성의 극대점이 PAA/PEO=1:1에서 2:3으로 이동하였으며, 착체형성의 정도 또한 감소하였다. 그리고, 물에 요소 및 무기염의 첨가는 소수성상호작용 및 정전상호작용의 결과로 수소결합을 통한 착체형성에 방해요인이 되었음을 점도측정을 통한 고분자의 수력학적 크기의 변화를 통하여 확인하였다.

A study on polymer complexation between poly (acrylic acid) (PAA) and poly (ethylene oxide)(PEO) via hydrogen bonding in aqueous media was made under different solvent and surrounding conditions using the Ubbelohde viscometer and pH meter. The lower pH condition of aqueous medium was favorable for complex formation due to the decreased dissociation of the PAA carboxyl groups. In water-ethanol (l8wt%) mixed solvent system, the most optimum stoichiometric ratio for complexation was shifted from [PAA]/[PEO]=1 : 1 (in pure water) to 2 : 3 with a fairly weakened complexing ability. The addition of ureas and inorganic salts in water seemed to impede the hydrogen-bonded complexation probably due to the combined effects of hydrophobic and electrostatic interactions involved, as judged from the variation in hydrodynamic dimension of the polymer molecules via (reduced) viscosity measurements in dilute solution.

[References]

Chatterjee SK, Malhotra A, Pachauri LS, Makromol. Chem., 116, 99 (1983)
Ikawa T, Abe K, Honda K, Tsuchida E, J. Polym. Sci. A: Polym. Chem., 13, 1505 (1975)
Ohno H, Mastuda H, Tsuchida E, Makromol. Chem., 182, 2267 (1981)
Iliopoulos I, Audebert R, J. Polym. Sci. B: Polym. Phys., 26, 2093 (1988)
Jeon SH, Lee T, J. Polym. Sci. A: Polym. Chem., 26, 1419 (1988)
Bimendina LA, Bekturov EA, Tleubaeva GS, Frolova VA, J. Polym. Sci., 66, 9 (1979)
VanKrevelen, "Properties of Polymer; 3rd Ed.," 247-249, Elsevier B.V., Netherlands (1990)
Cohen J, Priel Z, Polym. Commun., 30, 223 (1989)
Reichardt C, "Solvents and Solvent Effects in Organic Chemistry, 2nd Ed.," 42-50, VCH, Cambridge, New York (1988)
Chatterjee SK, Chatterjee N, Riess G, Makromol. Chem., 183, 481 (1982)
Bonner OD, Joen SI, Jhon MS, Bull. Korean Chem. Soc., 5, 175 (1984)
Jeon SI, Jhon MS, J. Polym. Sci. A: Polym. Chem., 22, 3555 (1984)
Kim HD, Jang CH, Ree T, J. Polym. Sci. A: Polym. Chem., 28, 1273 (1990)
Jang CH, Kim HD, Jo BK, Lee JO, Bull. Korean Chem. Soc., 16, 42 (1995)
Castellan GW, "Physical Chemistry, 3rd Ed.," 357-367, Addison-Wesley, U.S.A. (1983)

[Referenced By]

[1] Chatterjee SK, Malhotra A, Pachauri LS, Makromol. Chem., 116, 99 (1983)

[2] Ikawa T, Abe K, Honda K, Tsuchida E, J. Polym. Sci. A: Polym. Chem., 13, 1505 (1975)

[3] Ohno H, Mastuda H, Tsuchida E, Makromol. Chem., 182, 2267 (1981)

[4] Iliopoulos I, Audebert R, J. Polym. Sci. B: Polym. Phys., 26, 2093 (1988)

[5] Jeon SH, Lee T, J. Polym. Sci. A: Polym. Chem., 26, 1419 (1988)

[6] Bimendina LA, Bekturov EA, Tleubaeva GS, Frolova VA, J. Polym. Sci., 66, 9 (1979)

[7] VanKrevelen, "Properties of Polymer; 3rd Ed.," 247-249, Elsevier B.V., Netherlands (1990)

[8] Cohen J, Priel Z, Polym. Commun., 30, 223 (1989)

[9] Reichardt C, "Solvents and Solvent Effects in Organic Chemistry, 2nd Ed.," 42-50, VCH, Cambridge, New York (1988)

[10] Chatterjee SK, Chatterjee N, Riess G, Makromol. Chem., 183, 481 (1982)

[11] Bonner OD, Joen SI, Jhon MS, Bull. Korean Chem. Soc., 5, 175 (1984)

[12] Jeon SI, Jhon MS, J. Polym. Sci. A: Polym. Chem., 22, 3555 (1984)

[13] Kim HD, Jang CH, Ree T, J. Polym. Sci. A: Polym. Chem., 28, 1273 (1990)

[14] Jang CH, Kim HD, Jo BK, Lee JO, Bull. Korean Chem. Soc., 16, 42 (1995)

[15] Castellan GW, "Physical Chemistry, 3rd Ed.," 357-367, Addison-Wesley, U.S.A. (1983)